cnvd - cnvd-2021-44963

cnvd-2021-44963

Vulnerability from cnvd

Title: Http4s路径遍历漏洞（CNVD-2021-44963）

Description:

Http4s是一款开源的用于Scala的流HTTP服务器。

Http4s存在路径遍历漏洞，攻击者可利用该漏洞获取敏感信息。

Severity: 中

Patch Name: Http4s路径遍历漏洞（CNVD-2021-44963）的补丁

Patch Description:

Http4s是一款开源的用于Scala的流HTTP服务器。

Http4s存在路径遍历漏洞，攻击者可利用该漏洞获取敏感信息。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/http4s/http4s/security/advisories/GHSA-6h7w-fc84-x7p6

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-32643

Impacted products

Name
['http4s http4s >=0.21.7，<=0.21.23', 'http4s http4s >=0.22.0-M1，<=0.22.0-M8', 'http4s http4s >=0.23.0-M1', 'http4s http4s >=1.0.0-M1，<=1.0.0-M22']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-32643"
    }
  },
  "description": "Http4s\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u7528\u4e8eScala\u7684\u6d41HTTP\u670d\u52a1\u5668\u3002\n\nHttp4s\u5b58\u5728\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u654f\u611f\u4fe1\u606f\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/http4s/http4s/security/advisories/GHSA-6h7w-fc84-x7p6",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-44963",
  "openTime": "2021-06-25",
  "patchDescription": "Http4s\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u7528\u4e8eScala\u7684\u6d41HTTP\u670d\u52a1\u5668\u3002\r\n\r\nHttp4s\u5b58\u5728\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u654f\u611f\u4fe1\u606f\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Http4s\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\uff08CNVD-2021-44963\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "http4s http4s \u003e=0.21.7\uff0c\u003c=0.21.23",
      "http4s http4s \u003e=0.22.0-M1\uff0c\u003c=0.22.0-M8",
      "http4s http4s \u003e=0.23.0-M1",
      "http4s http4s \u003e=1.0.0-M1\uff0c\u003c=1.0.0-M22"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-32643",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-28",
  "title": "Http4s\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\uff08CNVD-2021-44963\uff09"
}

CVE-2021-32643 (GCVE-0-2021-32643)

Vulnerability from cvelistv5

Published

2021-05-27 17:15

Modified

2024-08-03 23:25

Severity ?

5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Summary

Http4s is a Scala interface for HTTP services. `StaticFile.fromUrl` can leak the presence of a directory on a server when the `URL` scheme is not `file://`, and the URL points to a fetchable resource under its scheme and authority. The function returns `F[None]`, indicating no resource, if `url.getFile` is a directory, without first checking the scheme or authority of the URL. If a URL connection to the scheme and URL would return a stream, and the path in the URL exists as a directory on the server, the presence of the directory on the server could be inferred from the 404 response. The contents and other metadata about the directory are not exposed. This affects http4s versions: 0.21.7 through 0.21.23, 0.22.0-M1 through 0.22.0-M8, 0.23.0-M1, and 1.0.0-M1 through 1.0.0-M22. The [patch](https://github.com/http4s/http4s/commit/52e1890665410b4385e37b96bc49c5e3c708e4e9) is available in the following versions: v0.21.24, v0.22.0-M9, v0.23.0-M2, v1.0.0-M23. As a workaround users can avoid calling `StaticFile.fromUrl` with non-file URLs.

References

▼	URL	Tags
	https://github.com/http4s/http4s/security/advisories/GHSA-6h7w-fc84-x7p6	x_refsource_CONFIRM
	https://github.com/http4s/http4s/commit/52e1890665410b4385e37b96bc49c5e3c708e4e9	x_refsource_MISC
	https://mvnrepository.com/artifact/org.http4s/http4s-core	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	http4s	http4s	Version: >= 0.21.7, < 0.21.24 Version: >= 0.22.0-M1, <= 0.22.0-M8 Version: = 0.23.0-M1 Version: >= 1.0.0-M1, < 1.0.0-M23

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JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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